Microsoft Windows up to Server 2016 Kernel Win32k win32k!NtQueryCompositionSurfaceBinding information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Microsoft Windows. This issue affects the function win32k!NtQueryCompositionSurfaceBinding in the library Win32k of the component Kernel. Such manipulation leads to information disclosure. This vulnerability is traded as CVE-2017-8678. An attack has to be approached locally. Furthermore, there is an exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System) and classified as problematic. Affected by this issue is the function win32k!NtQueryCompositionSurfaceBinding in the library Win32k of the component Kernel. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

The Windows kernel component on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an information disclosure vulnerability when it improperly handles objects in memory, aka "Win32k Information Disclosure Vulnerability". This CVE ID is unique from CVE-2017-8677, CVE-2017-8680, CVE-2017-8681, and CVE-2017-8687.

The bug was discovered 09/12/2017. The weakness was shared 09/12/2017 by Mateusz Jurczyk with Google Project Zero as KB4038788 as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. This vulnerability is handled as CVE-2017-8678 since 05/03/2017. The attack needs to be approached locally. The successful exploitation requires a simple authentication. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1592. The advisory points out:

An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.

A public exploit has been developed by Google Security Research and been published 6 days after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 103127 (Windows 7 and Windows Server 2008 R2 September 2017 Security Updates), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91408 (Microsoft Windows Security Update September 2017).

Applying the patch KB4038788 is able to eliminate this problem. The bugfix is ready for download at catalog.update.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (42750), Tenable (103127) and SecurityFocus (BID 100769†). The entries VDB-89035, VDB-106482, VDB-106501 and VDB-106502 are related to this item. Once again VulDB remains the best source for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 5.5
Vendor Vector (Microsoft): 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Google Security Research
Download: 🔍

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103127
Nessus Name: Windows 7 and Windows Server 2008 R2 September 2017 Security Updates
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft Windows Multiple Vulnerabilites (KB4039384)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Patch: KB4038788

Timelineinfo

05/03/2017 🔍
09/12/2017 +132 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/12/2017 +0 days 🔍
09/13/2017 +1 days 🔍
09/18/2017 +5 days 🔍
09/18/2017 +0 days 🔍
01/12/2021 +1212 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: KB4038788
Researcher: Mateusz Jurczyk
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8678 (🔍)
GCVE (CVE): GCVE-0-2017-8678
GCVE (VulDB): GCVE-100-106484

OVAL: 🔍

SecurityFocus: 100769 - Microsoft Windows Kernel 'Win32k.sys' CVE-2017-8678 Local Information Disclosure Vulnerability
SecurityTracker: 1039325

scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍

Entryinfo

Created: 09/13/2017 13:12
Updated: 01/12/2021 06:31
Changes: 09/13/2017 13:12 (100), 06/06/2020 09:34 (7), 01/12/2021 06:31 (2)
Complete: 🔍
Cache ID: 216::103

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